Adding compiler for pure Javascript.
Adding compiler for pure Html.
Renaming class, removing unused cs require.
Fixing file comparison conditionals.
Adding compiler for pure css.
Merge branch 'master' into feature/js-html-css

Conflicts:
	lib/polvo/core/file.map
Renaming style file.
Escaping code
Escaping code
Wrapping templates into a function
Removing useless return statement
Cleaning up define call and simplifying extension translation
Avoiding first (and useless) compile call
Implementing include tag for pure html files, based on HTML SSI
Editing supported languages and features.
Updating tests to include pure html/css/js validations.
Upgrading jade and stylus
Releasing 0.4.0